diff --git a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/0.org/wallFilmRegion/Uf b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/0.org/wallFilmRegion/Uf
index 3792e728..a9cceaed 100644
--- a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/0.org/wallFilmRegion/Uf
+++ b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/0.org/wallFilmRegion/Uf
@@ -36,7 +36,8 @@ boundaryField
     // mapped boundaries
     "(region0_to.*)"
     {
-        type            slip;
+        type            fixedValue;
+        value           uniform (0 0 0);
     }
 
     // floor sides